DDC
  • Welcome
    • Introduction
    • Supported hardware
  • 1: Project planning
    • Switch inputs
      • Switch table
      • Direct
      • Shift register
      • Port expander
    • Analog inputs
      • External ADC
    • RGB LED
    • Digital outputs
    • PWM / Circuit control
    • EEPROM
    • Processing and memory
  • 2. Wiring
    • Switch inputs
      • Matrix
      • Direct
      • Shift register
      • Port expander
    • Analog
      • Analog switches
      • External ADC
    • RGB LED
    • Digital outputs
    • PWM / Circuit control
    • EEPROM
  • 3. Coding
    • Essentials
      • 02_Board.ino
      • 08_Joystick
      • 10_TableAndAnalog.ino
        • Switch table
        • Analog channels
      • 30_Switches.ino
    • Peripherals
      • RGB LED
        • Firmware control
          • LED functions
          • Color
          • Brightness
          • Presets
        • SimHub control
      • Digital outputs
        • Setup
        • SimHub control
        • Firmware control
      • PWM / Circuit control
        • Setup
        • Calibrate
        • Switch control
        • Trigger control
      • Shift register
      • I2C devices
        • ADS1115
        • PCA9555
        • CAT24C512
    • Advanced
      • Analog inject
      • Conditional coding
        • Triggers
        • Editors
      • Field placement
      • Presets
        • 31_RunningPresets.ino
        • 32_Presets.ino
        • Example
    • Upload
    • Naming the controller
  • 4. Connect to SimHub
    • LED control
    • Controller settings and properties
      • How to connect?
      • How does it work?
      • How to control it?
      • Property list
  • Switch library
    • Pushbutton
    • Function switches
    • Toggle switches
    • Hat switches
    • Car control functions
      • QuickSwitch
      • BrakeMagic
      • ThrottleHold
      • Handbrake
    • Pedals & paddles
      • Brake/throttle
      • Clutch
      • Bite point & launch
      • Filtered curves
      • Shifter
    • Funky switch
      • Directional
      • Center push
    • Encoders
      • rotary2Bit
      • rotary4Bit
      • funkyRotary
      • wildEncoder
      • E18
      • rotaryPulse
      • PEC11
    • Rotary switches
      • rotaryAnalog
      • quickRotary
      • SW1
      • Editing functions
    • Multiswitch complexes
      • Hybrid rotary
      • Multifunction rotary
      • Modded encoder
      • Stacked encoder
    • Preset
    • DDS
    • RGB LED control
    • PWM / Circuit control
    • Utility
  • Fast DDC
    • Buttons and LED
    • 4 encoders, buttons and LED
    • Dual clutches, 4 encoders, buttons and LED
    • Dual clutches, 6 encoders, button matrix and LED
  • CB1
    • Ordering
      • Order together
      • Order yourself
        • 1. Open in EasyEDA
        • 2. Export files
        • 3. Edit Pick&Place
        • 4. Pin headers and jumper
        • 5. Order from JLCPCB
    • Wiring
    • Code
      • Essentials
      • Complete project
      • Settings
    • Circuit
    • Shields
      • Robin
  • Collaboration
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Fast DDC

PreviousUtilityNextButtons and LED

Last updated 1 month ago

The RP2040 has the handy ability to boot as a USB storage device. You can then simply drag-drop a firmware file into the drive, and it will automatically restart with the new firmware running.

There are a few ways to boot as storage device:

  • As long as it has no program running it will default to booting as storage device. For instance when coming straight from factory.

  • Holding the BOOTSEL button when powering up.

  • Using function, though this requires you to upload a firmware with this function first.

Community legend ZebbeBa has made several ready-to-use firmware files to drop onto your RP2040 boards. No coding required. Just chose the firmware that suits your needs and follow the wiring diagrams.

Naturally, these ready-to-use setups are generalized and aren't feature-packed. But they will do for most projects, and can help you get familiar with using DDC.

For firmwares using encoders there are different options for different types of encoders. You could try them all and see which one works the best.

firmwareUploadMode()